MHB Fast & Quickly Determine The Answer

  • Thread starter Thread starter susanto3311
  • Start date Start date
AI Thread Summary
To quickly determine answers in multiple-choice questions, participants discuss the effectiveness of comparing options. They emphasize that understanding the impact of discounts can help identify the best choice, as demonstrated by a scenario where a 35% discount on a higher amount yields greater savings. One user concludes that the shop offering the highest discount is the most economical option. The conversation highlights the importance of mental math and strategic comparison in decision-making. Overall, using comparison techniques can significantly enhance efficiency in answering multiple-choice questions.
susanto3311
Messages
73
Reaction score
0
hello all...

how to easy fast quickly in multiple choice :

any helps is greatly appreciated..

it's possible using compare? how do it?

a cross post " Mental Math in Multiple Choice Problem

thanks...
 

Attachments

  • exam ok.png
    exam ok.png
    3.5 KB · Views: 88
Mathematics news on Phys.org
susanto3311 said:
hello all...

how to easy fast quickly in multiple choice :

any helps is greatly appreciated..

it's possible using compare? how do it?

a cross post " Mental Math in Multiple Choice Problem

thanks...

Hi susanto3311!

Each shop has a total of 35% discount.
However, discount on 100,000 has more effect than discount on 80,000.
Therefore shop d gives the most discount and is therefore cheapest.
 
hi serena...

Great! Thank you so much...
very important for me...
 
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. In Dirac’s Principles of Quantum Mechanics published in 1930 he introduced a “convenient notation” he referred to as a “delta function” which he treated as a continuum analog to the discrete Kronecker delta. The Kronecker delta is simply the indexed components of the identity operator in matrix algebra Source: https://www.physicsforums.com/insights/what-exactly-is-diracs-delta-function/ by...
Suppose ,instead of the usual x,y coordinate system with an I basis vector along the x -axis and a corresponding j basis vector along the y-axis we instead have a different pair of basis vectors ,call them e and f along their respective axes. I have seen that this is an important subject in maths My question is what physical applications does such a model apply to? I am asking here because I have devoted quite a lot of time in the past to understanding convectors and the dual...
Thread 'Imaginary Pythagoras'
I posted this in the Lame Math thread, but it's got me thinking. Is there any validity to this? Or is it really just a mathematical trick? Naively, I see that i2 + plus 12 does equal zero2. But does this have a meaning? I know one can treat the imaginary number line as just another axis like the reals, but does that mean this does represent a triangle in the complex plane with a hypotenuse of length zero? Ibix offered a rendering of the diagram using what I assume is matrix* notation...

Similar threads

Replies
4
Views
2K
Replies
3
Views
1K
Replies
2
Views
2K
Replies
1
Views
1K
Replies
20
Views
2K
Back
Top